Corrosion Preventative in Aluminium

Gday Guys,

A little bit or corrosion is coming through on my tinny as of late.

No watter how much i wash it theres still those little places that don't.

Is there any product on the market that will get rid of the corrosion before its gets too bad? Something that is suitable on aluminium!

Can i buff it down then apply a coat of "something" that will prevent corrosion?

 

Cheers for any input

 

Sam

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Cheers,

Sam


Posts: 1072

Date Joined: 30/03/08

Be sure to keep all lead

Tue, 2009-02-24 18:43

Be sure to keep all lead sinkers, brass swivelos etc off the Ally boat. Potentially you will burn a hole though it in short time.

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carnarvonite's picture

Posts: 8622

Date Joined: 24/07/07

Anodes

Tue, 2009-02-24 19:01

Check the anodes on your outboard and replace them if they show corrosion.Also check that there is no metal hooks,swivels,sinkers as stated above specially in the bilge.Another thing to look for is that your electrical system is not earthed through the boat.

Posts: 313

Date Joined: 18/05/08

electrolises

Tue, 2009-02-24 19:05

 Any two metals put together will creat an electrical field causing the lesser  to corode aluminium boat being the lesser.Cant help with how to fix it though.

 

Cheers Uncle Stu

wrassinator's picture

Posts: 554

Date Joined: 26/11/08

John is right. Check the

Tue, 2009-02-24 19:19

John is right. Check the electrical system. No.1 mistake is earthing to the hull or connected superstructure. So many manufacturers do it and it's just...lazy. For $5 you can buy a proper insulated earth that isolates the hull and avoids that nasty habit of ali conducting into thin air, or salt water as the case may be...

 

Aside from that a few products claim to offer protection (amongst them paint of course) but not too sure how effective they are.

SamC's picture

Posts: 2013

Date Joined: 30/08/06

All good

Tue, 2009-02-24 20:55

All electric are running fine,  just a tiny bit of corrosion is happening near, where the bungs go in...

I'll ask the boys at the boat shop whats the go

Cheers for the input fellas 

Cheers,
Sam

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Cheers,

Sam

Andy's picture

Posts: 522

Date Joined: 08/10/05

Hey sam with the corrosion,

Wed, 2009-02-25 04:59

Hey sam with the corrosion, if it is around s/s screws, fittings etc. pull them out and coat the threads with a product called duralac. Its a joining compound for dissimilar metals. Its expensive but it works.
cheers andy